Now I'm in process of contract negotiation with a private company. They sending me the contract, I'm making some changes and then sending back to them for verification. Now they asking me to explain every change I done, but I can't remember them all. MSWord's diff tool is displaying too many useless changes, and I can't "ignore" some of them manually.

I guess I need something similar to KDiff tool, but with these extra features:

the ability to comment some
differences between 2 versions of a
text file.